Book-mark.



No. 670,766. Patented Mar. 26, |90l.

M. G. CARLETDN.

amm` MARK.

(Application led Dec. 27, 1900.

(No Model.)

l l "f/ V64 G #kan m o UNITED s STATES PATENT OEEICE.

MONROE OARLETON, oF GRASSEAKE, lvIIOmGAN.

BooK-MARK.

SPECIFICATION formingpart of Letters Patent No. 670,766, dated March 26, 190,1.

Application ledDecember 27, 1900.. Serial No. l11,200. LNo model.)v

T0 all whom it may concern.

Be itknown that I, MONROE G. CARLETON, a citizen of the United States, residing at Grasslake, in the county of Jackson and State of Michigan, have invented certain new and useful Improvements in Book-Marks; and I do de-` clare the following to be a full, clear, and exact description of the invention, such as will en able others skilled in the art to which it appertains tomake and use the same. t

My invention relates to improvements in bookm'arkers or page-indicating devices. It has for its objects to provide means to enable the reader of a book to keep an exact record of the page'at'which he leaves oiit from time to time while perusing the volume to the end,

and, further, to provide a device of this na ture which is simple, cheap, and durable and may be employed without injury to the book.

With these and other objects in view,which` will appear as the nature of the invention is better understood, the invention consists of certain novel features of construction, colnbination, and arrangement of parts, as will be hereinafter more fully described,and particu larly pointed out in the. appended claims.

In the accompanying drawings, illustrating the invention, Figurel is a perspective view of a book, showing the application of the invention thereto. Fig. 2 is a plan view of the Y marker removed, showing in full and broken lines the operation of the disk. Fig. 3 is a planview of the holder.` Fig. 4 is a similar view of the disk. Fig. 5 is a detail crosssectional View through the holder and disk.

Referring now more particularly to the drawings, the numeral 'l designates the holder of the marker or page-indicator, which carries the indicator-disk 2, and consists of a comparatively long and narrow plate or body having grooves or guideways 3, formed by v folding or bending the edge of the material off last.

.suitable for the purpose.

diameter corresponding nearly to the width of the holder, so as to fit and slide within the grooves 3, as well as to turn freely therein when actuated by the movement ofthe finger of the operator. This action of the disk is permitted when pressure is applied thereto to move it, but normally the disk is held securely in adjusted position by frictional engagement with the walls'of the grooves, which effectually prevents casual movement thereof. The disk is provided at one side with an observation-opening 4, through which the in.- dice characters on the holderare viewed, and at the inner end of said opening with a fin* ger or pointer 5. In order to enable the disk to be' conveniently operated, I preferably provide the same with a finger-grip in the form of a serrated surface 6, composed of a number of minute projections formed in any preferred way.

'In use the book-mark may be placed between the front or back cover and the ad-` joining leaf of the book or at any desired point in the book, and when the reader stops at any certain page the number of said 'page may be indicated by moving the disk to bring the observation-opening andpointer into register with the desired number in either one of the columns of numerals on the holder. OnA taking up the volume anew a glance at the indicator will show where the reader left In moving the 'disk one or more fingers of the hand are placed on the serrated surface 6, and the disk may then be slid or turned to set he pointer at the proper point. Fig. 2 of the/Zldrawings shows Ain full and broken lines t e positions the disk may be adjustedto to point to any desired numeral ineither one of the columns, and by reference to'this ligure, in connection with the foregoing description, the operation will be readily understood;

The holder and disk' may be made of paper, metal, Celluloid, or any other `material I do not thereforeI limit myself to theuse of any particular kind or kinds of material nor to the exact construction shown, but reserve the right to make such changes as' fall within thespirit and scope of my invention.

Having thus fully described my invention,

IOO

'comprising an elongated holder consisting of 1 ,Y a' b'odybearing columns of 'nu merals and having guide-flanges, and an indicator-disk having opposite side edges frictionally fitted between the body of the holder and said tlanges and adapted to beturned and to be slid longitudinally of the holder,said'disk being formed with an observation-opening and a pointer adapted to register with the numerals of either of said vcolumns of numerals, substantially as described.

An indicator of the character described, comprising a holder consisting of an elonwith longitudinal columns of numerals,and a K disk fitted to slide and to turn between the said body portion* and anges of the holder and provided with an observation-opening, a pointer cooperating therewith, and a friction-surface aording a grip or handhold, substantially as described.

In testimony whereof` I have hereunto set my hand in presenceof two subscribing witnesses.

MONROE G. CARLETON.

Witnesses: 4

OSCAR F. A. SPINNING, SEBoRN E. PATCHIN. 

